CoolLED Ltd.

Since our team of four introduced the first commercially available LED illumination system in 2006, we have led the way in transforming light source technology for fluorescence microscopy. LEDs are now the system of choice because they are more stable, longer lasting, and offer a wealth of performance benefits compared to traditional mercury-based illuminators.

CoolLED offers a comprehensive range of LED Illumination Systems for life science research and clinical microscopy including:


pE-800 Series - Two sophisticated yet easy-to-use LED Illumination Systems which feature eight individually controllable channels, industry-leading < 7 µs TTL switching and a host of advanced control options.

While the pE-800 is designed for everyday fluorescence, the pE-800^fura builds on this ground-breaking technology to offer the most comprehensive system for calcium imaging and ratiometric applications.
pE-4000 – the universal LED Illumination System for research fluorescence, with the broadest spectrum of illumination available from 16 selectable wavelengths, and extensive functionality that sets a new standard for the industry.
pE-300 Series – Three Illumination Systems for everyday fluorescence microscopy, which offer intense, broad spectrum illumination covering the excitation bands of common fluorophores. pE-340^fura – Bespoke LED Illuminator for Fura-2 ratiometric calcium imaging, built on our pE-300 Series technology, which also supports everyday fluorescence microscopy. pE-100 range of compact, simple-to-use, single wavelength illumination systems for screening fluorescence.
We also offer the pT-100 range for transmitted illumination applications including brightfield, darkfield, DIC, Dodt gradient contrast and phase contrast.

If you’re after something a little different, CoolLED technology is available in OEM and tailor-made configurations for manufacturers who wish to integrate stable, controllable LED illumination into their products.